Select the most appropriate meaning of the given idiom.

Provide a blueprint

Give a detailed plan or scheme

The most appropriate meaning of the idiom "provide a blueprint" is give a detailed plan or scheme.

The other options are incorrect.

• "Propose a plan of a secret meeting" does not mean give a detailed plan or scheme. A proposal is a suggestion, but it is not necessarily detailed.
• "Submit a printed application for a blue-collared job" does not mean give a detailed plan or scheme. An application is a form that you fill out to apply for a job, but it is not necessarily detailed.
• "Have a building plan printed in blue" does not mean give a detailed plan or scheme. A blueprint is a type of drawing that is printed in blue, but it is not necessarily detailed.

The idiom "provide a blueprint" comes from the idea of a blueprint being a detailed plan for a building. In the same way, to provide a blueprint means to give a detailed plan or scheme for something. For example, you might say that a business plan provides a blueprint for how a business will operate.